Improvement in corn shelling and grinding machines



- 2 Sheets-Sheet1. J. G. MORRIS.

Corn-Shellixig and Grinding Machine.

Patented Feb. 12,1878.

fz 'qf llll ml 1 HI W gag/R2737 m MPETERS, FHOTO-LITHQGR'APHER, WASHINGTON. o. C,

2 Sheets-.-Sheet 2.

J. G. MORRIS. Corn-Shelling and Grinding Machine.

Patented Feb. 12,1878.

UNITED STATES PATENT OF oE.

JOSEPH G. MORRIS, CF CHICAGO, ILLINOIS, ASSIGNOB O'F ONE-HALF HIS RIGHT TO WILLIAM H. CREMINS, OF SAME PLACE.

IMPROVEMENT IN CORN SHELLING AND GRINDING MACHINES.

Specification forming part of Letters Patent No. 200,215, dated February 12, 1878; application filed d January 11, 1878.

To all whom it may concern:

Be it known that I, JosEPH G. MoRRIsmf Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Portable Farm-Mills and I do hereby declare the following to be a full,

clear, and exact description of the same, reference being made to the accompanying drawings, forming a part of this specification, and in which- Figure 1 represents a longitudinal central vertical section of my improved mill through the line 3 y of Fig. 2. Fig. 2 is a horizontal section through the line 3 1 of Fig. 1. Figs. 3, 4, 5, and 6 are detail views.

This invention relates to improvements in portable farm-mills for shelling corn and grinding it into meal, and separating the same, having for its object simplicity in the construction and operation of the various parts thereof; and the invention consists in the construction, combination, and arrangement of parts, as will be hereinafter fully described.

In the'drawings, A represents the vertical posts, and B the cross-sills, forming the main frame of the mill. C represents a horizontal shaft journaled in the lower cross-sills B of the mill-frame. D represents a cylindrical burr-stone, centrally secured upon the shaft C, and E represents the usual concave bed,

which is supported upon one end of the pivoted beam F, the concave bed being adjusted vertically and secured in any desired position by means of the metallic strap a, and thumbscrew a. Both the stone and concave bed are provided with angle-furrows c, the furrows on the stone being arranged reversely to those on the concave bed, so that in operation the furrows produce a shearing out upon the material being ground, and at the same time convey the material toward the center of th grinding-surfaces.

Upon each side of the stone or burr D, and connected thereto, are metallic plates G G, the metallic plate G being provided with a front serrated face, 9, which forms the cornshelling disk. The object of a metallic plate upon each side of the stone is'to more evenly balance said stone, to prevent chipping 01f of the stone, and also'for securing it to the shaft, the metallic plates being screwed onto the shaft in the usual manner.

H- represents the usual yielding throat, through which the ears of corn are fed, and at the same time held against the shellingdisk. H represents the discharge-spout for the corn-,cobs, and I a spout (shown in dotted lines)'which discharges the shelled corn into the conveyer 1 from which it is discharged, I through spout J, into the feeding-hopper J.

The hopper J is provided with a hole or opening, j, in its bottom, through which the corn is fed to the shaking or vibrating shoe K. This shoe is suspended from the hopper J by means of the straps k, two at the front end and one at the rear end, the rear strap being secured to a roller or shaft, 70, by means of which the rear end of the shoe can be raised or lowered to increase or decrease the flow of the-material to the grinding mechanism. The shoe is provided with a stationary valve, h, having an enlarged head, h, which extends up through the opening j in the hopper, and which stirs upand prevents the material from clogging up said opening when the shoe is shaken or vibrated. When it is desired to increase or decrease the amount of feed, the rear end of the shoe is raised or lowered, which raises or lowers the valve h h, thus enlarging or decreasing the size of the opening through the hopper, the shoe at the same time being inclined more or less, and thus correspondingly increasing or decreasing the flow of the material to the grinding mechanism.

L represents a screen arranged in the shoe K, through which the corn is bolted, while any large substances contained therein are separated therefrom and discharged through spout Z. The corn passing through said screen is discharged through spout l to the grinding mechanism.

M represents a spout, communicating from the fan-case M with spout Z and by which the corn is subjected to a blast from the fan M arranged upon the shaft 0, and by which the chaff I and other light impurities are sepa the corn: and discharged through spoutl?.:;="

rated from I riddle :N, which is providedwith two screens, i a w, clothed, :respectively, with coarser and finer meshes of cloth. tThe screen nseparates the bran from the meal, the bran passing over 1 the :tail of i screen :a: into: discharge-spout o,

and the mealbolted through the screen onto 7 V 1 screen, a, andthrough which theifine hour is bolted into hopper 0 while the: corn-meal passes :overtlic tail of screen a into dis charge-spout 10 all as clearly shown in Fig; 1.

V The riddle N is centrally suspended at each:

7 :endi'rom the cross-beams A bymeans of the -::hangers:ec;,; and by which: the inclination of 1 said riddle can be adj usted: to: regulate the:

: flow of the material over the screens, 1 r Y i i Z In: the class of machines: wherein the matei V rialis {delivered in heated condition direct:

' from the burrs onto the screen or screens, it

; r :it essential thatthe riddle be; given such move mentsas will keep the material in such agita:

tion as to throw the coarsestand lightest mate I rialto: the top, and also prevent thescreen: or 7 screens from clogging, so as to :allow the material i to be bolted freely, which is eftectm ally accomplished bvthc: oscillating, longitudh nal, reciprocating, or: vibrating: and jarring I movements imparted thereto: To 1 communt:

: 1 cate these movements to the: riddle; I employ I a connecting-rod, P, having: one :end 'eccen trically connected: tothe eccentric-wheel? 7 upon shaft O, whereby a crank movement is given to said rod 1?. The other end of rod P is connected to a pin, 01, on one side of the riddle, the connecting-rod I? being formed with a short longitudinal slot, m, working over the pin 61 on the riddle, which allows the riddle to remain motionless for a short time at the close of each oscillation, while the eccentric-wheel P continues to turn and moves the connecting-rod, while the riddle, being suspended, as before described, receives a sudden jarring movement at each end of the stroke of the connecting-rod upon the pin d, which agitates and throws the lightest materials to the top, and keeps the meshes of the screens open.

In order to give the riddle a longitudinal vibrating or reciprocating movement I adjustably fulcrum the connecting-rod to the frame of the mill, which is accomplished by providing the rod P with a long longitudinal slot, m, working over the pin 01, which allows the connecting-rod (by means of the crank movement imparted thereto) to give the longitudinal vibrating or reciprocating movement to the riddle without interfering with the crank movement of the connecting-rod for oscillatin g the riddle.

desired. avldo notdesire i Thefeeding-shoeKisshaken or vibrated throughthe 'mediumof the pivoted connect r V V i in -iever'ltand'arm Big-connected therewith :Thegroundmcahirom the grinding mech :anism, is discharged into 7 the conveyor I, which conveys and discharges it& through a: 1 spout onto the oscillating I and reciprocating :an'd operated by the eocentriawheel P.

shaft of the elevator:byconnccting-bands, in

the usual manner, or by any other equivalent i r mechanism; :The mill can'also'bedrivenby: 'auysnitablemotor-powerapplied to theimain shaftQ: J rThe'operation'of my improved minis follows: The: corn :in the ear :is fed to the: corn 7 i r r i shellingmechanism,zfrom which the shelled cornis discharged into the elevator-I ,and fromthencaby means or" spout J, discharged into hopper J where it is fedinto the shak :7 4 ing-shoe K, and the extraneous: matters sepa rated: therefrom :byiscreen: andblasa iand itrom said shoe'the corn is delivered to: the grinding mechanism, and the ground: meal: 4 discharged therefrom into elevator lfiwhich discharges it through a spoutonto the upper :i :screenot' thc riddle, and, by the twoscreens containedi therein,

meal and: separated into the different grades desire to claim, broadly, as my invention; but,

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a portable mill, the combination of the corn-shelling, cob-separating, elevating or conveying, feeding and cleaning, grinding, and bolting and separating mechanisms, substantially as and for the purpose herein shown and described.

2. The combination of the grinding-burr D, metallic plate G, and corn-shelling plate or disk Gr, connected together and arranged upon the shaft (3, substantially as and for the purposes specified. g

3. The combination, with the hopper J, provided with the bottom opening j, of the vertically adj ustable and shaking or vibrating shoe K, having the valve h with enlarged i separated into the 1 different I V gradesdesired. w' :It:wi1l thereforebeperceived that by my r -:improved mill the: cornis I snbjectedto: a: con-: 1 5 i tinnousoperationifrom theitime the cornisww 7 fed to the mill ini the car until itis reduced to I to limit: myself to the procise arrangement and construction of mech 'anism herein described, asthey: may be va- 4 1 3 I Lried,changed, or modified to some extent without departing from the obj ect of 1 my inven head h, the several parts constructed and rela- 4. The combination of the riddle, centrally rod, provided with longitudinal slots m m suspended by hangers and mechanism, subplaying upon the pins d d, substantially as stantially as described, whereby said riddle is and for the purpose specified. I

adapted to receive oscillating, reciprocating, or vibrating and jarring movements, substan- JOSEPH MORRIS tially as and for the purpose specified. Witnesses:

5. The combination, with the riddle and DEWITT O. ALLEN, Wheel P, or its equivalent, of a connecting- N. L. ALLEN. 

